If you're considering buying one of our roll cages, the following are instructionson installing one. The tips that weshow here, most race car shopsare reluctant to share with you. Sotake your time while reading.For our puposes we are using an '86Mustang. We are installing a "chromoly"(4130) 12 point cage with our "ExtremeDuty" frame connectors, part#6601.One thing to remember, Chromolyroll bars and roll cages are requiredby (NHRA),to be "TIG" welded. With mildsteel roll cages, you're allowed to "MIG" weld it.

#3 Cut floor out 2" wide from frontframe rail to, and in line with,rear frame rail.

#4 Slide Auto Weld's "Extreme Duty"frame connector up in place and thenweld all the way around

#5 Frame connector welded into place.

#6 Cut the bottom of main hoop to fit outrigger, or plate, on the floor,whichever you are using.

#7 After main hoop is tacked intoplace, it's time to fit up the halobar at the roof line.

#8 A homemade prop rod will holdup the front to help get ready totack weld.

#9 Prepare the floor for the A-pillar bars.

#10 If using outriggers, first welda plate to the side of the rocker box. This is the general procedure forattaching outriggers to the rocker box for both the main hoop and A-pillar bars.

#11 If using outriggers , you will be able to remove them ( if you tack welded them). This willenable you to drop the roll cagedown in the car so you can weldthe joints with ease.

#12 Weld as shown.

#13 After top joints are welded,stand main cage structure back upin the car, reinstall outriggersand weld all around. Then weld bottomlegs of the main roll cage structure.

#14 Following these procedures youwill be able to make a nice tightfit of the top part of the cageto the headliner. NICE!!

#15 After the seat brace and shortdiagonal braces are fit and weldedinto place, it's time to fit up the back braces. Notice the good copingjob (no gaps in fit up!)

#16 Double check measurments.

#17 When welding the rear bracesto the top of the main hoop, greatcare must be taken so you don'tburn the headliner. Use a piece of sheet metal or other similar materialagainst the headliner. This willalso protect headliner from sparks.Use a hammer or something else to wedge the headliner and main hoopapart, pushing the headliner as far away from the main hoop as possible.This will give the extra clearanceto weld, also creating an air gap.NOTE: You will still have to use a wet rag to keep sheet metal cool.You don't want to melt the headliner!#18 View of how the short diagonalbraces are attached. Always use a 6x6x1/8" plate welded to the floorbefore roll bar tubing is attached.The short diagonals can also be attached to the frame connectors.

#19 For this project we are alsoinstalling an "X" brace to supportthe upper torque box area. The objectis to make the car as stiff as possible for better reaction. We usea string for a general projectionof where the X-brace would be.

#20 This little device sure saveshours of frustration. It keepsthe two tubes in-line with each other.

#21 Time to weld.

#22 Another trick we use is to runa short tube from the A-pillar tubeto the front frame area. This greatlystiffens the front section of the car.

#23 The bar is being fitted.

#24 The bar is now completely welded.

#25 Here is an inside shot of thefront part of the finished cage.

The above car went on to win many championships. If you follow these procedures youwill have a safe, good looking rollcage. We at AUTO WELD hope these instructions help you with your project.GOOD LUCK!!#26 Cage finished! Notice the "Extreme Duty" frame connectorsprotruding up through the floor.NICE!!